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Finding the Fourth Proportional to 75,760.61, 113,629.97 and 23,155.97

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Solution

The fourth proportional to 75,760.61, 113,629.97 and 23,155.97 is: 34,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,760.61 : 113,629.97 = 23,155.97 : x
  2. Step 2: Convert to fraction form
    75,760.61/113,629.97 = 23,155.97/x
  3. Step 3: Cross multiply
    75,760.61x = 113,629.97 × 23,155.97
  4. Step 4: Simplify right side
    75,760.61x = 2,631,211,608.27
  5. Step 5: Solve for x
    x = 2,631,211,608.27/75,760.61
  6. Step 6: Final answer
    x = 34,730.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.